Inside China's Record-Breaking Tunnel Through Deadly Mountains

Name: Inside China's Record-Breaking Tunnel Through Deadly Mountains
Uploaded: 2026-01-22T23:48:41.686Z
Duration: 13 min 2 s
Channel: Hightech Road Bridge
Description: China just finished a 22 km expressway tunnel through some of the most dangerous mountain terrain on Earth. Here’s how engineers pulled it off and why it matters.

Hightech Road Bridge

12 Video Views·Jan 22, 2026

China just finished a 22 km expressway tunnel through some of the most dangerous mountain terrain on Earth. Here’s how engineers pulled it off and why it matters.